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56011881250 = 255132192791
BaseRepresentation
bin110100001010100100…
…010111101100100010
312100120120020101022101
4310022210113230202
51404203020200000
641422001001014
74022012064223
oct641244275442
9170516211271
1056011881250
1121833279456
12aa3232316a
135388438700
1429d4d5324a
1516cc577e6a
hexd0a917b22

56011881250 has 144 divisors (see below), whose sum is σ = 119742960960. Its totient is φ = 19585800000.

The previous prime is 56011881239. The next prime is 56011881251. The reversal of 56011881250 is 5218811065.

It is not an unprimeable number, because it can be changed into a prime (56011881251) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20067355 + ... + 20070145.

It is an arithmetic number, because the mean of its divisors is an integer number (831548340).

Almost surely, 256011881250 is an apocalyptic number.

56011881250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56011881250 is an abundant number, since it is smaller than the sum of its proper divisors (63731079710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56011881250 is a wasteful number, since it uses less digits than its factorization.

56011881250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 37.

The spelling of 56011881250 in words is "fifty-six billion, eleven million, eight hundred eighty-one thousand, two hundred fifty".

Divisors: 1 2 5 10 13 19 25 26 38 50 65 95 125 130 169 190 247 250 325 338 475 494 625 650 845 950 1235 1250 1625 1690 2375 2470 2791 3125 3211 3250 4225 4750 5582 6175 6250 6422 8125 8450 11875 12350 13955 16055 16250 21125 23750 27910 30875 32110 36283 40625 42250 53029 59375 61750 69775 72566 80275 81250 105625 106058 118750 139550 154375 160550 181415 211250 265145 308750 348875 362830 401375 471679 528125 530290 689377 697750 771875 802750 907075 943358 1056250 1325725 1378754 1543750 1744375 1814150 2006875 2358395 2651450 3446885 3488750 4013750 4535375 4716790 6628625 6893770 8721875 8961901 9070750 10034375 11791975 13257250 17234425 17443750 17923802 20068750 22676875 23583950 33143125 34468850 44809505 45353750 58959875 66286250 86172125 89619010 113384375 117919750 165715625 172344250 224047525 226768750 294799375 331431250 430860625 448095050 589598750 861721250 1120237625 1473996875 2154303125 2240475250 2947993750 4308606250 5601188125 11202376250 28005940625 56011881250